<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
    <h1>{{info}}</h1>
</div>
<!--<script src="vue.min.js"></script>-->
<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
<script>
    let v= new Vue({
        el:"body>div",
        data:{
            info:"hello vue"
        }
    })
    setTimeout(function (){
        v.info="值改变了"
    },3000)
</script>
</body>
</html>